Dell C1048P Port Extender Networking Configuration Guide for the C9000 Series - Page 626

timeout value to be 30 seconds. Invoking the longer timeout might prevent the LAG from flapping if the remote system is up but temporarily unable to transmit PDUs due to a system interruption. NOTE: The 30-second timeout is available for dynamic LAG interfaces only. You can enter the lacp long-timeout command for static LAGs, but it has no effect. To configure LACP long timeout, use the following command. • Set the LACP timeout value to 30 seconds. CONFIG-INT-PO mode lacp long-timeout Example of the lacp long-timeout and show lacp Commands Dell(conf)# interface port-channel 32 Dell(conf-if-po-32)#no shutdown Dell(conf-if-po-32)#switchport Dell(conf-if-po-32)#lacp long-timeout Dell(conf-if-po-32)#end Dell# show lacp 32 Port-channel 32 admin up, oper up, mode lacp Actor System ID: Priority 32768, Address 0001.e800.a12b Partner System ID: Priority 32768, Address 0001.e801.45a5 Actor Admin Key 1, Oper Key 1, Partner Oper Key 1 LACP LAG 1 is an aggregatable link A - Active LACP, B - Passive LACP, C - Short Timeout, D - Long Timeout E - Aggregatable Link, F - Individual Link, G - IN_SYNC, H - OUT_OF_SYNC I - Collection enabled, J - Collection disabled, K - Distribution enabled L Distribution disabled, M - Partner Defaulted, N - Partner Non-defaulted, O - Receiver is in expired state, P - Receiver is not in expired state Port Te 10/6 is enabled, LACP is enabled and mode is lacp Actor Admin: State ADEHJLMP Key 1 Priority 128 To view the PDU exchanges and the timeout value, use the debug lacp command. For more information, refer to Monitoring and Debugging LACP. Monitoring and Debugging LACP The system log (syslog) records faulty LACP actions. To debug LACP, use the following command. • Debug LACP, including configuration and events. EXEC mode [no] debug lacp [config | events | pdu [in | out | [interface [in | out]]]] Link Aggregation Control Protocol (LACP) 626